In a note it is told about advantage of shlangovy dozhdevalny cars before others, similar appointment.
Separate technical characteristics and parameters are given.
UDC 631
In agricultural industry of the European countries specific weight of shlangovy dozhdevalny cars for watering of various cultures on the average makes 50 %, and in droughty areas reaches 90 %.
The main advantage of dozhdevalny cars in front of cars of similar appointment is high universality and extreme flexibility at adaptation to needs of any user in connection with simplicity of service and rather low price. One car in the conditions of insufficient moistening can serve a field in the area to 70 hectares at rather small capital investments and annual charges on operation.
(The Ukrainian vegetable company) UVC offers production of the world leader in this branch which includes a number of shlangovy dozhdevalny cars over 180 names. This row begins with models which have the smallest diameter of a hose – 40 mm and its length – 130 m, and comes to an end with model with the greatest diameter of a hose – 140 mm and length of 750 m.
Besides, there are special models of the dozhdevalny cars equipped with pumps with engines, submitting water from open channels, and auxiliary engines for cars which eat water from low-pressure head pipelines.
Separate special models of cars are equipped with compact diesel or petrol engines which are used for a rewinding of a hose and actuating of hydraulic service systems of cars. Offered dozhdevalny cars are equipped with the chassis with rotary platforms which give the chance to irrigate the fields located opposite to, without change of a position of the car. They can work at any angle to a track. Hydraulic cars with a low arrangement of the center of gravity in one position can provide platform turn on 3600i guarantee the maximum stability of the car when winding very long hoses. Separate type of such cars are small dozhdevalny cars for economical watering of small sites, such as hothouses, greenhouses, playgrounds, etc.
The main components of the shlangovy dozhdevalny car are the rotary platform mounted on the hook-on chassis with the coil, driving system with the turbine and a transmission, the polyethylene hose of necessary length and the mobile cart with the dozhdevalny device. The turbine is heart of the dozhdevalny car and its technical characteristics determine by the greatest measure functionality of the car.
New radial polnopotochny turbines from a special aluminum alloy are relieved of an intermediate belt drive and connected directly to a multistage transmission in which all transfers are shipped in an oil bath that provides high technical characteristics, smoothness and uniformity of their work. Owing to such technical solution it was possible to reduce considerably losses of a pressure and to provide a wide range of working speeds of the dozhdevalny device even at low pressure and small expenses of water. If in the previous systems of loss of pressure upon a drive of the turbine made 1-1,5 bar, in turbines of the last generation these losses are reduced to 0,3-0,5 bar. It gives the chance to work to cars at entrance pressure of water 2-3 a bar when using irrigation bars, and 5-6 bar – when using dozhdevalny devices.
Possibility of a choice of technological schemes and operating modes of advanced dozhdevalny cars by means of computer programs does their use even more effective in the conditions of any configuration of an irrigated field.
JSC UVC (The Ukrainian vegetable company)
Ph. in Kiev (044) 562-69-12, 564-95-42.
(On materielam the Propozits_ya magazine).